County annual report · FIPS 26157
2017 Tuscola County, MI Power Outage Report
In 2017, customers in Tuscola County, MI went without power for an average of 19.4 hours, a total of 323K customer-hours (Michigan average 6.0 hours). That ranks 11th worst of 80 Michigan counties and 282nd of 2,786 nationally.
Compared with MI, the US and 2016
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Tuscola County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 6, 2017 13:00 | April 12, 2017 12:30 | 5d 23h | 4,558 | 192K |
| 2 | October 7, 2017 23:15 | October 10, 2017 13:15 | 2d 14h | 4,078 | 74K |
| 3 | April 21, 2017 23:00 | April 22, 2017 05:45 | 6h 45m | 1,067 | 4,762 |
| 4 | May 25, 2017 02:45 | May 25, 2017 10:15 | 7h 30m | 866 | 5,205 |
| 5 | August 6, 2017 23:15 | August 7, 2017 17:15 | 18h | 687 | 1,908 |
| 6 | October 14, 2017 19:15 | October 17, 2017 08:00 | 2d 12h | 609 | 10K |
| 7 | June 2, 2017 12:45 | June 2, 2017 19:15 | 6h 30m | 553 | 972 |
| 8 | September 23, 2017 09:30 | September 23, 2017 21:15 | 11h 45m | 547 | 2,050 |
| 9 | December 4, 2017 20:00 | December 7, 2017 15:15 | 2d 19h | 524 | 3,689 |
| 10 | September 10, 2017 16:15 | September 10, 2017 20:45 | 4h 30m | 486 | 434 |
Outage episodes by size in 2017: 27 reached 100+ customers, 3 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Tuscola County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2017 | 10.1 hrs | 1.31 | 2.7 hrs | 0.89 |
| DTE Electric Company | 2017 | 17.7 hrs | 1.39 | 3.3 hrs | 0.99 |
| Thumb Electric Coop of Mich | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Michigan's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 16,639 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Tuscola County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tuscola County, MI annual power outage report, 2017, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2017/michigan/tuscola-county